ISP to RSW flight delays & on-time performance
Nonstop flights from Long Island MacArthur Airport to Southwest Florida International Airport · 1,101 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ISP or RSW right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Islip (ISP) to Fort Myers (RSW) arrived on time 62% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 2.7% were cancelled, and 9% arrived an hour or more late.
- Departures scheduled around 6am did best (92% on time); around 7am did worst (47%).
- Friday was the most reliable day to fly (79% on time) and Sunday the least (50%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (42%).
Which airline is most on time from ISP to RSW?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Frontier Airlines | 100% | 0.0% | 0 min | 0.0% | 7 |
| JetBlue | 59% | 2.9% | 22 min | 9.9% | 104 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am92%24 flights
- 7am47%32 flights
- 11am53%16 flights
- 2pm57%14 flights
- 4pm52%21 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday62%7.1% cancelled
- Tuesday56%5.3% cancelled
- Wednesday67%0.0% cancelled
- Thursday63%0.0% cancelled
- Friday79%0.0% cancelled
- Saturday64%0.0% cancelled
- Sunday50%5.3% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)42%
- Air traffic control & airport congestion38%
- Late-arriving aircraft19%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
ISP to RSW: common questions
- How often are ISP to RSW flights on time?
- 62% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Islip to Fort Myers cancelled?
- 2.7% of scheduled flights were cancelled (3 of 111).
- How long are typical delays?
- Across all flights the average arrival delay was 20 min (early arrivals count as zero). Flights that were late arrived 51 min behind schedule on average, and 9.3% of flights were an hour or more late.
- How long is taxi time at ISP?
- Flights on this route spent 14 min taxiing from the gate to takeoff on average.
Related routes
Return trip: RSW to ISP — 68% on time
More flights from Islip
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: ISP → RSW, nonstop flights by US airlines that report to the DOT. How we calculate this.